Authorities said two other people sustained minor injuries and were evaluated on the scene.

Five apartments are uninhabitable due to extensive damage, according to the Howard County Department of Fire and Rescue Services. More than 20 people have been displaced; the American Red Cross is providing assistance.

Power companies are rapidly restoring power after a high of about 3,000 outages in the region Wednesday afternoon.

Tornado warnings issued earlier for D.C. and parts of Maryland and Virginia have either expired or been canceled.

A tornado warning for Howard County, Maryland, expired at 1:30 p.m. It was canceled for parts of Prince George's and Anne Arundel counties a few minutes earlier. An earlier tornado warning was canceled for the D.C. area around 12:45 p.m.

The rain began falling across northern Virginia early Wednesday and raced north, arriving inside the Beltway at midday.

More than an inch of rain had already fallen in some areas by midday; the region could get aother inch before it's all over.

Storm Team 4 Meteorologist Chuck Bell warned drivers to stay off the roads when the rain is heaviest.

Heavy rain still in the 4cast for DC this aft. Stay weather alert. Some areas already over 1", much more to come. pic.twitter.com/wZgcOXgEly